I have been facing this problem of itching at the extreme end of both my ears for the past 2-3 ears. Initially i kept thinking that it must be due to dirt or ear wax. But this is not going away, and it constantly keeps itching througout the day. This is affecting my concentration very badly and also i have to keep poking my ears again and again for relief. I dont know if it's related or not, but i have once been treated for a broad nasal septum. I used to sneeze constantly due to this problem.